x = "There are %d types of people."% 10  #Define the variable x,A string is put inside a string
binary = "binary"  #Define the variable binary
do_not = "don't"  #Define the variable do_not
y = "Those who know %s and those who %s."%(binary,do_not)  #Define the variable y,A string is put inside a string

print x  #Print variable x
print y  #Print variable y

print"I said: %r."% x  #Print a string,A string is put inside a string
print"I also said: '%s'."% y  #Print a string,A string is put inside a string

hilarious = False #Define the variable hilarious
joke_evaluation = "Isn't that joke so funny?! %r" #Define the variable joke_evaluation,A string is put insede a string

print joke_evaluation % hilarious  #Print a string,A string is put insede a string

w = "This is the left side of..." #Define the variable w
e = "a string with a right side."  #Define the variable e

print w + e  #Print a string and another string
